.page-products {
  --cat-card-radius: 14px;
  --cat-row-line: 1px solid var(--line-light);
  --cat-row-line-dark: 1px solid var(--line-dark-soft);
}

/* ---------- 首屏 ---------- */
.page-products .cat-hero {
  padding-block: 40px 56px;
}
.page-products .cat-hero__crumb {
  margin-bottom: 26px;
  color: var(--text-on-ink-dim);
}
.page-products .cat-hero__crumb a {
  color: var(--celadon-soft);
  text-decoration: none;
}
.page-products .cat-hero__crumb a:hover {
  color: var(--amber-soft);
}
.page-products .cat-hero__grid {
  display: grid;
  gap: 34px;
}
.page-products .cat-hero__lead h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 32px;
  line-height: 1.24;
  letter-spacing: -0.02em;
  color: var(--paper);
}
.page-products .cat-hero__lead .lede {
  margin-top: 20px;
  color: var(--text-on-ink);
}
.page-products .cat-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}
.page-products .cat-hero__aside {
  border-top: 2px solid var(--amber);
  padding-top: 16px;
}
.page-products .cat-hero__aside-label {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--celadon-soft);
  margin-bottom: 14px;
}
.page-products .cat-hero__stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-products .cat-hero__stat {
  display: flex;
  align-items: baseline;
  gap: 10px;
  border-bottom: var(--cat-row-line-dark);
  padding-bottom: 10px;
}
.page-products .cat-hero__num {
  font-size: 26px;
  color: var(--amber-soft);
  line-height: 1;
}
.page-products .cat-hero__unit {
  font-size: 15px;
  color: var(--text-on-ink-dim);
}

/* ---------- 通用小节头 ---------- */
.page-products .cat-section-head {
  max-width: 62ch;
  margin-bottom: 34px;
}
.page-products .cat-section-head .section-title {
  margin-top: 10px;
}

/* ---------- 栏目总览 ---------- */
.page-products .cat-overview {
  padding-block: 56px;
}
.page-products .cat-overview__body .lede {
  margin-top: 14px;
  max-width: 64ch;
}
.page-products .cat-overview__figure {
  margin: 34px 0 0;
}
.page-products .cat-layers {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-products .cat-layer {
  display: flex;
  gap: 16px;
  background: var(--white);
  border-radius: var(--cat-card-radius);
  padding: 20px 18px;
  border-left: 3px solid var(--gray);
  transition: transform 160ms ease, border-color 160ms ease;
}
.page-products .cat-layer--entry {
  border-left-color: var(--amber);
}
.page-products .cat-layer--main {
  border-left-color: var(--celadon);
}
.page-products .cat-layer--compare {
  border-left-color: var(--ink-2);
}
.page-products .cat-layer--archive {
  border-left-color: var(--celadon-soft);
}
.page-products .cat-layer__num {
  flex: 0 0 auto;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--gray);
  padding-top: 4px;
}
.page-products .cat-layer__body {
  min-width: 0;
}
.page-products .cat-layer__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 20px;
  letter-spacing: -0.01em;
  color: var(--graphite);
}
.page-products .cat-layer__text {
  margin: 8px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--gray);
}
.page-products .cat-layer__tags {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-products .cat-overview__foot {
  margin-top: 30px;
  padding-top: 18px;
  border-top: var(--cat-row-line);
  font-size: 16px;
  line-height: 1.85;
  color: var(--gray);
}
.page-products .cat-overview__foot a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--amber);
  text-underline-offset: 4px;
}
.page-products .cat-overview__foot a:hover {
  color: var(--amber);
}

/* ---------- 三个常用入口 ---------- */
.page-products .cat-trinity {
  padding-block: 56px;
}
.page-products .cat-trinity__grid {
  display: grid;
  gap: 18px;
}
.page-products .cat-trinity__item {
  background: var(--paper);
  border-radius: var(--cat-card-radius);
  padding: 24px 20px 26px;
  border-bottom: 3px solid var(--celadon);
  transition: background-color 160ms ease, border-color 160ms ease;
}
.page-products .cat-trinity__item--spot {
  border-bottom-color: var(--amber);
}
.page-products .cat-trinity__item:hover {
  background: var(--white);
  border-bottom-color: var(--amber);
}
.page-products .cat-trinity__num {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--celadon);
}
.page-products .cat-trinity__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 21px;
  letter-spacing: -0.01em;
  color: var(--graphite);
}
.page-products .cat-trinity__text {
  margin: 10px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--gray);
}
.page-products .cat-trinity__meta {
  margin: 18px 0 0;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ink-2);
}
.page-products .cat-trinity__foot {
  margin-top: 28px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--gray);
}
.page-products .cat-trinity__foot a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--amber);
  text-underline-offset: 4px;
}
.page-products .cat-trinity__foot a:hover {
  color: var(--amber);
}

/* ---------- 收藏与回溯 ---------- */
.page-products .cat-collect {
  padding-block: 56px;
}
.page-products .cat-collect__grid {
  display: grid;
  gap: 32px;
}
.page-products .cat-collect__body .lede {
  margin-top: 14px;
}
.page-products .cat-collect__list {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 20px;
}
.page-products .cat-collect__list > li {
  padding-left: 16px;
  border-left: 2px solid var(--celadon-soft);
}
.page-products .cat-collect__item-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 18px;
  color: var(--graphite);
}
.page-products .cat-collect__list p {
  margin: 6px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--gray);
}
.page-products .cat-collect__note {
  margin: 26px 0 0;
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ink);
  border: 1px solid var(--line-light);
  border-radius: 999px;
  padding: 8px 16px;
  background: var(--white);
}
.page-products .cat-collect__figure {
  margin: 0;
}

/* ---------- 工具矩阵 ---------- */
.page-products .cat-tools {
  padding-block: 56px;
}
.page-products .cat-tools__figure {
  margin: 0 0 32px;
}
.page-products .cat-tools__scroll {
  overflow-x: auto;
  border-top: 2px solid var(--ink);
  border-bottom: 1px solid var(--line-light);
  -webkit-overflow-scrolling: touch;
}
.page-products .cat-tools__scroll:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}
.page-products .tool-table {
  width: 100%;
  min-width: 800px;
  border-collapse: collapse;
  text-align: left;
}
.page-products .tool-table__caption {
  text-align: left;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--gray);
  padding: 14px 12px 12px 0;
}
.page-products .tool-table thead th {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--gray);
  padding: 10px 12px 12px 0;
  border-bottom: 1px solid var(--line-light);
  white-space: nowrap;
}
.page-products .tool-table tbody tr {
  border-bottom: 1px solid var(--line-light-soft);
  transition: background-color 160ms ease;
}
.page-products .tool-table tbody tr:hover {
  background: var(--paper);
}
.page-products .tool-table tbody th {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 17px;
  color: var(--graphite);
  padding: 20px 12px 20px 0;
  white-space: nowrap;
}
.page-products .tool-table td {
  font-size: 16px;
  line-height: 1.7;
  color: var(--gray);
  padding: 20px 12px 20px 0;
  vertical-align: top;
}
.page-products .tool-table__num {
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--celadon);
  white-space: nowrap;
}
.page-products .cat-tools__foot {
  margin-top: 26px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--gray);
}
.page-products .cat-tools__foot a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--amber);
  text-underline-offset: 4px;
}
.page-products .cat-tools__foot a:hover {
  color: var(--amber);
}

/* ---------- 版本演进 ---------- */
.page-products .cat-versions {
  padding-block: 56px;
}
.page-products .cat-versions .section-title {
  color: var(--ink);
}
.page-products .cat-versions .section-index {
  color: var(--ink-2);
}
.page-products .cat-versions__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
  counter-reset: none;
}
.page-products .cat-version {
  background: rgba(255, 255, 255, 0.72);
  border-radius: var(--cat-card-radius);
  padding: 24px 20px;
  border-top: 3px solid var(--ink-2);
}
.page-products .cat-version--current {
  background: var(--amber);
  border-top-color: var(--ink);
}
.page-products .cat-version__tag {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--ink-2);
  margin: 0;
}
.page-products .cat-version__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 20px;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.page-products .cat-version__text {
  margin: 10px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-2);
}
.page-products .cat-version--current .cat-version__tag,
.page-products .cat-version--current .cat-version__text {
  color: var(--ink);
}
.page-products .cat-versions__figure {
  margin: 34px 0 0;
}

/* ---------- 使用组合 ---------- */
.page-products .cat-scenes {
  padding-block: 56px;
}
.page-products .cat-scenes__body .lede {
  margin-top: 14px;
  max-width: 60ch;
}
.page-products .cat-scenes__list {
  margin-top: 30px;
  border-top: var(--cat-row-line);
}
.page-products .cat-scene {
  border-bottom: var(--cat-row-line);
}
.page-products .cat-scene__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 16px;
  padding: 20px 0;
  cursor: pointer;
  list-style: none;
}
.page-products .cat-scene__summary::-webkit-details-marker {
  display: none;
}
.page-products .cat-scene__summary:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}
.page-products .cat-scene__summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--amber);
}
.page-products .cat-scene[open] .cat-scene__summary::after {
  content: "\2212";
}
.page-products .cat-scene__num {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--celadon);
}
.page-products .cat-scene__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 20px;
  letter-spacing: -0.01em;
  color: var(--graphite);
}
.page-products .cat-scene__hint {
  margin-left: auto;
  font-size: 14px;
  color: var(--gray);
}
.page-products .cat-scene__body {
  padding: 0 0 24px;
  max-width: 68ch;
}
.page-products .cat-scene__body p {
  margin: 0 0 12px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--gray);
}
.page-products .cat-scene__use {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.03em;
  color: var(--ink-2);
}

/* ---------- 对照视图 ---------- */
.page-products .cat-compare {
  padding-block: 56px;
}
.page-products .cat-compare__grid {
  display: grid;
  gap: 30px;
}
.page-products .cat-compare__text .section-title {
  color: var(--paper);
  margin-top: 10px;
}
.page-products .cat-compare__text p {
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.9;
  color: var(--text-on-ink);
  max-width: 56ch;
}
.page-products .cat-compare__btn {
  margin-top: 26px;
}
.page-products .cat-compare__figure {
  margin: 0;
}
.page-products .cat-compare__figure .media__caption {
  color: var(--text-on-ink-dim);
}

/* ---------- 下一步 ---------- */
.page-products .cat-next {
  padding-block: 56px;
}
.page-products .cat-next__panel {
  border-top: 2px solid var(--ink);
  padding-top: 30px;
}
.page-products .cat-next__list {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 26px;
}
.page-products .cat-next__item {
  border-bottom: var(--cat-row-line);
  padding-bottom: 22px;
}
.page-products .cat-next__item-num {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--celadon);
  margin: 0;
}
.page-products .cat-next__item-title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 19px;
  color: var(--graphite);
}
.page-products .cat-next__item p {
  margin: 8px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--gray);
}
.page-products .cat-next__link {
  display: inline-block;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--amber);
  padding-bottom: 3px;
  transition: color 160ms ease, border-color 160ms ease;
}
.page-products .cat-next__link:hover {
  color: var(--amber);
  border-color: var(--ink);
}
.page-products .cat-next__link:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

/* ---------- 桌面端 ---------- */
@media (min-width: 720px) {
  .page-products .cat-hero {
    padding-block: 52px 76px;
  }
  .page-products .cat-hero__lead h1 {
    font-size: 40px;
  }
  .page-products .cat-trinity__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-products .cat-collect__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
    gap: 44px;
  }
  .page-products .cat-scene__summary {
    gap: 10px 24px;
    padding: 24px 0;
  }
  .page-products .cat-compare__grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: 48px;
    align-items: center;
  }
  .page-products .cat-next__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px 40px;
  }
  .page-products .cat-layers {
    gap: 16px;
  }
}

@media (min-width: 960px) {
  .page-products .cat-hero__grid {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, 0.68fr);
    gap: 60px;
    align-items: end;
  }
  .page-products .cat-hero__lead h1 {
    font-size: 46px;
  }
  .page-products .cat-overview__figure,
  .page-products .cat-tools__figure,
  .page-products .cat-versions__figure {
    margin-top: 40px;
  }
  .page-products .cat-layer:nth-child(1) {
    width: 100%;
  }
  .page-products .cat-layer:nth-child(2) {
    width: 92%;
  }
  .page-products .cat-layer:nth-child(3) {
    width: 84%;
  }
  .page-products .cat-layer:nth-child(4) {
    width: 76%;
  }
  .page-products .cat-layers {
    gap: 18px;
  }
  .page-products .cat-versions__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
  }
  .page-products .cat-version {
    border-radius: 0;
    padding: 30px 26px 34px;
    border-top-width: 3px;
    border-left: 1px solid var(--line-light);
  }
  .page-products .cat-version:first-child {
    border-left: 0;
  }
  .page-products .cat-version--current {
    margin: 0;
  }
  .page-products .cat-next__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 32px;
  }
}

@media (min-width: 1200px) {
  .page-products .cat-layer {
    padding: 24px 22px;
  }
  .page-products .cat-trinity__item {
    padding: 28px 24px 30px;
  }
}